This document describes recommendations for specific load balancers, such as F5, with Active Cluster. Cisco Information Server (CIS) is not aware of the load balancer and does not change its communication in any way if it has to go through a load balancer. For example, CIS does not throttle packets or alter the byte stream. The interaction between CIS and the load balancer is passive so there are no specific recommendations.
Best Practices for Load Balancer Use with Active Cluster
- Active Cluster has no programmatic awareness of the load balancer or load balancer commands and controls.
- A Round-Robin load balancing scheme is the recommended configuration.
- Make sure that the Web Services Description Language (WSDL) points to the load balancer instead of each individual host when you configure the hostname.
- You cannot run Composite Studio through the load balancer. Make sure that you connect directly to the CIS server instance.
Base Port Requirements
You need at a minimum the base port (CIS HTTP port) and up to base port +3 ports. These additional ports are derived from the base port:
- base port +1 = JDBC and ODBC
- base port +2 = HTTP SSL
- base port +3 = JDBC SSL
- base port +4 = Reserved
- base port +5 = Reserved
- base port +6 = Monitor
- base port +7 = Active Cluster/JGroups (when installed)
- base port +8 = MySQL database (when installed)
- base port +9 = Composite Monitor (when installed)